689930733 has 8 divisors (see below), whose sum is σ = 937264608. Its totient is φ = 451275344.

The previous prime is 689930729. The next prime is 689930753. The reversal of 689930733 is 337039986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 689930733 - 2² = 689930729 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689930713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169435 + ... + 2169752.

It is an arithmetic number, because the mean of its divisors is an integer number (117158076).

Almost surely, 2^689930733 is an apocalyptic number.

It is an amenable number.

689930733 is a deficient number, since it is larger than the sum of its proper divisors (247333875).

689930733 is a wasteful number, since it uses less digits than its factorization.

689930733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339243.

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 689930733 is about 26266.5325652245. The cubic root of 689930733 is about 883.6260220857.

The spelling of 689930733 in words is "six hundred eighty-nine million, nine hundred thirty thousand, seven hundred thirty-three".